29445928865 has 4 divisors (see below), whose sum is σ = 35335114644. Its totient is φ = 23556743088.

The previous prime is 29445928823. The next prime is 29445928901. The reversal of 29445928865 is 56882954492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11780063296 + 17665865569 = 108536^2 + 132913^2 .

It is a cyclic number.

It is not a de Polignac number, because 29445928865 - 2¹² = 29445924769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29445928798 and 29445928807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944592882 + ... + 2944592891.

It is an arithmetic number, because the mean of its divisors is an integer number (8833778661).

Almost surely, 2^29445928865 is an apocalyptic number.

It is an amenable number.

29445928865 is a deficient number, since it is larger than the sum of its proper divisors (5889185779).

29445928865 is an equidigital number, since it uses as much as digits as its factorization.

29445928865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889185778.

The product of its digits is 49766400, while the sum is 62.

The spelling of 29445928865 in words is "twenty-nine billion, four hundred forty-five million, nine hundred twenty-eight thousand, eight hundred sixty-five".